20123534023 has 8 divisors (see below), whose sum is σ = 20626225200. Its totient is φ = 19621408320.

The previous prime is 20123533999. The next prime is 20123534027. The reversal of 20123534023 is 32043532102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20123534023 - 2⁹ = 20123533511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123534027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68848 + ... + 212101.

It is an arithmetic number, because the mean of its divisors is an integer number (2578278150).

Almost surely, 2^20123534023 is an apocalyptic number.

20123534023 is a deficient number, since it is larger than the sum of its proper divisors (502691177).

20123534023 is a wasteful number, since it uses less digits than its factorization.

20123534023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282737.

The product of its (nonzero) digits is 4320, while the sum is 25.

The spelling of 20123534023 in words is "twenty billion, one hundred twenty-three million, five hundred thirty-four thousand, twenty-three".